164 lines
9.5 KiB
Text
164 lines
9.5 KiB
Text
[[_client_scopes]]
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=== Client Scopes
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If you have many applications you need to secure and register within your organization, it can become tedious to configure the
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<<_protocol-mappers, protocol mappers>> and <<_role_scope_mappings, role scope mappings>> for each of these clients. {project_name} allows
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you to define a shared client configuration in an entity called a _client scope_.
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Client scopes also provide support for the OAuth 2 `scope` parameter, which allows a client application to request more or fewer
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claims or roles in the access token, according to the application needs.
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To create a client scope, follow these steps:
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* Go to the `Client Scopes` left menu item. This initial screen shows you a list of currently defined client scopes.
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.Client Scopes List
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image:{project_images}/client-scopes-list.png[]
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* Click the `Create` button. Name the client scope and save. A _client scope_ will have similar tabs to a regular clients. You can
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define <<_protocol-mappers, protocol mappers>> and <<_role_scope_mappings, role scope mappings>>, which can be inherited by other clients,
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and which are configured to inherit from this client scope.
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==== Protocol
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When you are creating the client scope, you must choose the `Protocol`. Only the clients which use same protocol can then be linked
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with this client scope.
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Once you have created new realm, you can see that there is a list of pre-defined (builtin) client scopes in the menu.
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* For the SAML protocol, there is one builtin client scope, `roles_list`, which contains one protocol mapper for showing the roles
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list in the SAML assertion.
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* For the OpenID Connect protocol, there are client scopes `profile`, `email`, `address`, `phone` and `offline_access` .
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The client scope, `offline_access`, is useful when client wants to obtain offline tokens. Learn about offline tokens in the
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<<_offline-access, Offline Access section>> or in the https://openid.net/specs/openid-connect-core-1_0.html#OfflineAccess[OpenID Connect specification],
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where scope parameter is defined with the value `offline_access`.
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The client scopes `profile`, `email`, `address` and `phone` are also defined in the https://openid.net/specs/openid-connect-core-1_0.html#ScopeClaims[OpenID Connect specification].
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These client scopes do not have any role scope mappings defined, but they have some protocol mappers defined, and these mappers correspond
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to the claims defined in the OpenID Connect specification.
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For example, when you click to open the `phone` client scope and open the `Mappers` tab, you will see the protocol mappers, which
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correspond to the claims defined in the specification for the scope `phone`.
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.Client Scope Mappers
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image:{project_images}/client-scopes-phone.png[]
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When the `phone` client scope is linked to a client, that client automatically inherits all the protocol mappers defined in the
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`phone` client scope. Access tokens issued for this client will contain the phone number information about the user, assuming that
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the user has a defined phone number.
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Builtin client scopes contain exactly the protocol mappers as defined per the specification,
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however you are free to edit client scopes and create/update/remove any protocol mappers (or role scope mappings).
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==== Consent related settings
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Client scope contains options related to the consent screen. Those options are useful only if the linked client is configured to
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require consent (if the `Consent Required` switch is enabled on the client).
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Display On Consent Screen::
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If on, and if this client scope is added to a client with consent required, then the text specified by `Consent Screen Text` will
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be displayed on the consent screen, which is shown once the user is authenticated and right before he is redirected from {project_name}
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to the client. If the switch is off, then this client scope will not be displayed on the consent screen.
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Consent Screen Text::
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The text shown on the consent screen when this client scope is added to some client with consent required defaults to
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the name of client scope. The value for this text is localizable by specifying a substitution variable
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with `${var-name}` strings. The localized value is then configured within property files in your theme. See the
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link:{developerguide_link}[{developerguide_name}] for more information on localization.
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[[_client_scopes_linking]]
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==== Link Client Scope with the Client
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Linking between client scope and client is configured in the `Client Scopes` tab of the particular client. There are 2 ways of
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linking between client scope and client.
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Default Client Scopes::
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This is applicable for both OpenID Connect and SAML clients. Default client scopes are always applied when issuing OpenID Connect tokens
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or SAML assertions for this client. The client will inherit Protocol mappers and Role Scope Mappings defined on the client
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scope. For the OpenID Connect Protocol, the Mappers and Role Scope Mappings are always applied, regardless of value of used for the scope
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parameter in the OpenID Connect authorization request.
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Optional Client Scopes::
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This is applicable only for OpenID Connect clients. Optional client scopes are applied when issuing tokens for this client,
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but only when they are requested by the `scope` parameter in the OpenID Connect authorization request.
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===== Example
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For this example, we assume that the client has `profile` and `email` linked as default client scopes, and `phone` and `address`
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are linked as optional client scopes. The client will use the value of the scope parameter when sending a request to the OpenID Connect authorization
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endpoint:
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```
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scope=openid phone
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```
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The scope parameter contains the string, with the scope values divided by space (which is also the reason why a client scope name
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cannot contain a space character in it). The value `openid` is the meta-value used for all OpenID Connect requests, so we will ignore
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it for this example. The token will contain mappers and role scope mappings from the client scopes `profile`, `email` (which are
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default scopes) and `phone` (an optional client scope requested by the scope parameter).
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==== Evaluating Client Scopes
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The tabs `Mappers` and `Scope` of the client contain the protocol mappers and role scope mappings declared solely for this client.
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They do not contain the mappers and scope mappings inherited from client scopes. However, it may be useful to see what the
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effective protocol mappers will be (protocol mappers defined on the client itself as well as inherited from the linked client scopes)
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and the effective role scope mappings used when you generate the token for the particular client.
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You can see all of these when you click the `Client Scopes` tab for the client and then open the sub-tab `Evaluate`. From here you
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can select the optional client scopes that you want to apply. This will also show you the value of the `scope` parameter, which needs to
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be sent from the application to the {project_name} OpenID Connect authorization endpoint.
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.Evaluating Client Scopes
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image:{project_images}/client-scopes-evaluate.png[]
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NOTE: If you want to see how you can send a custom value for a `scope` parameter from your application, see the
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link:{adapterguide_link}#_params_forwarding[parameters forwarding section], if your application uses the servlet adapter, or the
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link:{adapterguide_link}#_javascript_adapter[javascript adapter section], if your application uses the javascript adapter.
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===== Generating Example Tokens
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To see an example of a real access token, generated for the particular user and issued for the particular client, with the specified
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value of `scope` parameter, select the user from the `Evaluate` screen. This will generate an example token that includes all of the
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claims and role mappings used.
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==== Realm Default Client Scopes
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The `Realm Default Client Scopes` allow you to define set of client scopes, which will be automatically linked to newly created clients.
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Open the left menu item `Client Scopes` and then select `Default Client Scopes`.
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From here, select the client scopes that you want to add as `Default Client Scopes` to newly created clients and `Optional Client Scopes`
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to newly created clients.
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.Default Client Scopes
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image:{project_images}/client-scopes-default.png[]
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Once the client is created, you can unlink the default client scopes, if needed. This is similar to how you
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remove <<_default_roles, Default Roles>>.
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==== Scopes explained
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The term `scope` is used in {project_name} on few places. Various occurences of scopes are related to each other, but may have
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a different context and meaning. To clarify, here we explain the various `scopes` used in {project_name}.
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Client scope::
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Referenced in this chapter. Client scopes are entities in {project_name}, which are configured at the realm level and they can be
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linked to clients. The client scopes are referenced by their name when a request is sent to the {project_name} authorization endpoint
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with a corresponding value of the `scope` parameter. The details are described in the <<_client_scopes_linking, section about
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client scopes linking>>.
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Role scope mapping::
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This can be seen when you open tab `Scope` of a client or client scope. Role scope mapping allows you to limit the roles which can
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be used in the access tokens. The details are described in the <<_role_scope_mappings, Role Scope Mappings section>>.
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ifeval::[{project_community}==true]
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Authorization scopes::
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This is used by the Authorization feature. The `Authorization Scope` is the action which can be done in the application.
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More details in the link:{authorizationguide_link}[Authorization Services Guide].
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endif::[]
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